Marine Biodiversity Data Portal - NI

Place name : West Light Wall, Rathlin Island. County : Antrim

Date : 2025-07-20 GPS : 55.30421,-6.28112. Depth : -15.0 to -31.0 m. [ View map ]

Site Description : Vertical bedrock wall covered in sponges, anemones and ascidians.

Forest kelp, Laminaria hyperborea, [00:00:04]; Lobster pot with two lobsters, Homarus gammarus, [00:00:10]; Sea beech, Delesseria sanguinea, [00:00:25]; Wall of soft corals, Alcyonium digitatum, [00:00:44]; Black tar sponge, Dercitus bucklandi, [00:01:05]; Yellow cluster anemone, Parazoanthus axinellae, [00:01:17] Yellow sponge, Iophon nigricans, [00:01:55]; Volcano sponge, Haliclona viscosa, [00:02:06]; Sea squirt, Aplidium nordmanni, [00:02:19]; White cluster anemone, Parazoanthus anguicomus, [00:02:52]; Back of cave in limestone are the sponges, Spongosorites calcicola, Desmacella cf. annexa and Pachymatisma johnstonia [00:03:08]; Golfball sponge, Tethya citrina, [00:04:03]; Hedgehog sponge, Polymastia boletiformis, [00:04:21]; Ballan wrasse, Labrus bergylta, [00:04:30]; Elegant anemones, Cylista elegans, [00:04:37]; Soft coral, Alcyonium digitatum, [00:05:15]; Jewel anemones, Corynactis viridis, [00:05:21]; Hydroid, Ectopleura larynx, [00:05:59]; Colonial sea squirt, Diplosoma spongiforme, [00:06:18]; White plumose anemones, Metridium senile, [00:06:24]; Yellow sponge, Myxilla incrustans, [00:06:31]; Wall of jewel anemones, Corynactis viridis, [00:06:46]; Sea gooseberry, Pleuobranchia pileus, [00:07:09]

Biotope 1 : Sponges and anemones on vertical circalittoral bedrock.

Biotope 2 : Laminaria hyperborea with dense foliose red seaweeds on exposed infralittoral rock.